# Nick Kosi

Nick Kosi is a remote worker on Himalayas, Software Engineer at Oyster Skin, based in Nigeria.

Source: https://himalayas.app/@nickkosi

```text
AI-focused backend engineer delivering scalable production systems for healthcare and consumer AI.
```

| Detail | Value |
| --- | --- |
| Availability | Open to opportunities |
| Location | Nigeria |
| Authorized to work in | Nigeria |
| Job categories | Backend Engineer, AI Engineer, Machine Learning Engineer, Backend Engineer, Site Reliability Engineer, Platform Engineer, System Architect |
| Skills | REST APIs, Large Language Models, Lang Chain, PyTorch, Node, TypeScript, Laravel, PHP, Microservices, PostgreSQL, Caching, AWS, Docker, Integration Testing, JWT, Redis, Git, Test Driven Development, Deep Learning, NodeJS |

## What I'm looking for

```text
I seek roles where I can build scalable AI-backend systems, work with LLMs and real-time data, and deliver measurable product and performance improvements in collaborative teams.
```

## About

```text
I am an AI-focused backend engineer with proven experience building production-grade systems that leverage large language models, real-time streaming, and scalable backend architectures for healthcare and consumer applications. I have delivered multi-tenant healthcare platforms supporting 100 hospitals and AI-powered products serving thousands of users while improving performance, retention, and reliability.

My work emphasizes reliable data processing, optimization, and testing: I built an LLM streaming conversation system with persistence and multichannel notifications, optimized PostgreSQL queries to reduce response times by 45%, and established testing frameworks achieving 80% coverage. I prioritize secure, maintainable systems that drive measurable product outcomes and operational uptime.
```

## Experience

### Software Engineer (current)

Oyster Skin. Jul 2025 - Present

```text
Engineered a production real-time AI conversation streaming system serving 4,000 registered users and 1,000 daily active users, implemented persistence and multichannel AI notification infrastructure, and improved user retention by 35% through gamification.
```

Skills: PostgreSQL, Redis, Docker, AWS, Performance-Optimization, LLM

### Software Engineer

AfriHealth Limited. Jul 2024 - Jul 2025

```text
Architected a multi-tenant enterprise healthcare platform with 24 backend modules and ~300 API endpoints serving 100 hospitals and 5,000 patients, optimized PostgreSQL queries to reduce API response time by 45% and achieved 99.5% uptime via robust integrations and failover.
```

Skills: TypeScript, PostgreSQL, Microservices, API-Integration, Testing, Performance-Optimization

## Education

### Federal University of Technology, Owerri

Bachelor of Technology, Chemistry

```text
Completed a Bachelor of Technology (B.Tech) degree in Chemistry at the Federal University of Technology, Owerri.
```

### Colorado State University

Bachelor's coursework, Computer Science

```text
Completed Bachelor's coursework in Computer Science at Colorado State University.
```

## Tech stack

- PostgreSQL
- Gmail
- Node.js
- Laravel
- Redis
- PHP
- PyTorch
- LangChain

To contact Nick, message them from this profile with a Himalayas employer account: [Hire on Himalayas](https://himalayas.app/hire).

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